Improved machine foe the manufacture of hoese-shoes



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A. J. ROBERTS. MACHINE FOR THE MANUFACTURE OF HORSESHOES '1 No. 67,910. Patented Aug; 20, 1867.

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MACHINE FOR THE MANUFACTURE OF HORSESHOES. No. 67,910. Patented Aug. 20, 1867'.

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A.J.ROBERTS. MACHINE FOR THE MANUFACTURE OP'HORSESHOES. No. 67,910.

Patented Aug. 20, 1867.

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A. J. ROBERTS, OF BOSTON, ASSIGNOR TO HIMSELF AND'B. F. BROWN, OF

' DORGHESTER, MASSACHUSETTS Lem. Patent No. 67,910, dated August 20, 1867.

IMPROVED MACHINE FOR THE MANUFAUIUBE 0F HORSE-SHOES.

TO ALL WHOM IT MAY CONCERN:

Be it known that I, A. J. ROnERTS, of Boston, in the county of Su'fl'olk, and State of Massachusettm-hare invented certain new and useful improvements in the Manufacture of Horse-Shoes; and Ido hereby declare that the following, taken in connection with the drawings which accompany and form part of this specification, isa description of my invention sufiicient to enable those skilled in the art to practise it. i

The invention relates to the construction or arrangement of parts, and the method of operation of machines for cutting and forming from bar metal horse-shoes, having the grooves and nail-holes sunk therein and heelcalks turned up therefrom,- the bar being automatically fed into the machine, and having each piece to form a shoe intnrncut from its entering end bent round a former or pattern, the nail-holes punched therein, the heelcalks bent up therefrom, and the formed shoe discharged, the invention consisting in the details ofconstrueti'on and arrangement for effecting these results.

The drawings represent a machine embodying the invention, A showing a plan, and Ba side elevation'of the same, 0 a-sectional elevation takeuon the line a: a: of the plan. (t denotes a frame, having hearings, in which is mounted a wheel, b, on theperiphery of irhich is a series oil-formers or .pa'ttern-blockm c, having the form in outline of the inner'edgeof' a shoe; In line with the upper-surface of the wheel, and on oneside thereof, is a reciprocating carriage, (1, upon which the bar to be converted into shoes is placed. This carriage is supported and slideson weys e, and is connected to theend of a rocker-arm,f, projecting from a rocker-shaft, 9, upon which shaft another arm, 12, is fixed, which arm is actuated by a cam, i, on the driving-shaft k, at each revolution of said driving-shaft,'the cam acting against a friction-rollon the arm h, andthrowing out said arm,

7 thereby turning the shaft g,'nnd causing the carriage to be thrown outwardly, while its inward movement is produced by the retraction of aspring, i. The bar is held down to the surface of the carriage by a series of i'riction-pawls is, connected together and pressed against the bar by-the action of a spring, I, and springs interposed between the adjacent paw-ls. In being carried toward and over the wheel the end of the bar passes through a guide, n, one face of which forms, with a movable cutter orblade, o, shearsto cut 05' the blank for each shoe. This blade is hung and turns on a suitable pivot, and is actuated at proper times by a cam, p, on the shaft In, to force it down, and a spring, p, to carry it back. When the piece orhlank is thus out off by the blade it lies upon the periphery of the wheel 15, and is held thereto by a griping -jaw, q, having a tooth or projection, 1, which extends down slightly from its under surface and normally into a peripheral groove, s, in the centre of "the wheel. The blank is held stationary by this jaw, while the wheel moves on (the jaw being forced against the blank by a cam, t, on the shaft k,) until a former, a, on the wheel comes against the blank. As or-just before this former strikes the blank two presser-rolls, v, on levers w are pressed up towards and over the opposite sides of'the wheel, and as theblank is moved forwards by'the former these resser-rolls bend it around the sides of the former, the tooth projecting from the gripingjaw pressing into the blank, and the wheel keeping it in central position or from being carried laterally over in either direction. The action of the rolls brings the blank into the general shape of a shoe, the jaw q rising from the blank by the action of a spring, :0, as the former carries the blank forwards. The arms of the levers w, to which the presser-rolls are applied, are scverallypressed inwardly at proper times by side-cams you the driving-shaft k, which act against rolls .1 on the outer arms'of the levers, and they are thrown back after the shoe is formed by the action of a spring or springs, a. The shape of the cams which operate the levers is preferably such as to cause the rolls 1) to draw down the ends of the blank some what against the edges of the former towards the heels of the shoe. The inner end of each lever w has gear-teeth, b, which mesh into gear-teeth on a pair of levers, c, which have resser-rolls, d, similar to the rolls v, said rolls being actuated by movement of the levers w, and keeping up the pressure of the blank against the sides of the 'former as said former and blank pass between them, and especially while the formed blank is being operated upon by a swinging die-block, e, hung to a head, f, on the frame a, thelower surface of this block having dies or punches g for sinking the nail-holes in the surface of the shoes. In normal position the die-block-is .held up from the wheel, as seen at B, by a spring, h, and it has extending from it and into the groove 3 a projection, i, which, as the former with the blank advancelsfis struck by the blank and swung down, thereby compressing the dies orpunches 9' against and forcing them into the surface of the blank. Just in rear of each former, on opposite sides of the groove, are two calk-benders, k, fixed upon the outer end of a radial sliding-bar, Z, upon whose inner end is an incline, m which when the blank is held between the surface of the'wheel and thedie block, and while a tail-piece, of, projects down into the groove 8 between the heel ends of the blank, strikes a stationary pin, 0 in the frame a, and is forced outwardly, thereby bending up t-he ends of the blank and forming thereof the heeLcalks to the shoe, the sliding-bar being drawn into the wheel, after passing the pin o by the action of a suitable spring. In front of each former is a shoe-discharger, g,- fiired to one end of a spring, r, whose other end is fastened to the wheel I). In the'path of movement of the spring is a roll, 8', turning on a pin, t, projecting inwardly from the frame, and as each spring strikes and rides against this roll it is pressed outwards, carrying with it the dischargcr q", and causing said discharger to expel the formed shoe or blank from the machine. The former-wheel b is driven by a gear, v", on the main driving-shaft k, meshing into a gear, 10 on the shaft of the wheel I), and all the movemeuts'of the mechanism described for feeding'the. bar, for cutting from it each blank, for bending the blank around the former, and for carrying it to the punching and calls-bending devices, are efl'ected by the cams and gear located directly on the driving-shaft.

The general operation of the mechanism is as follows: The spring-pawls being raised by a handle, re, the bar is introduced beneath them, with its front end carried through the guide at and abutted against the blade 0, the carriage being drawn back to the extent of its outward movement. As the driving-shaft is then revolved, and as the cam 2'(\vhich has carried back the carriage) passes beyond the friction-roll on the arm h, the spring t" impels the carriage with the bar forward, the blade 0 having been raised by the action of the spring 10. The forward movement of the bar carries its front end over the wheel I) and under the griping-jaw q, the end projecting beyond the tooth of said jaw being equal in length to the part between said tooth and the plane of the blade 0. The continued movement of the wheel next causes the jaw to beforced down. by its cum t, (its tooth pressing into the bar,) and the blade 0 is at the same time carried down' by its cam 12 and severs the blank As the wheel moves on, one of theformers c on its periphery strikes the blank and carries it on with the wheel, and just as or before the former comes opposite to the presser-rolls a, said rolls are carried inwards by the cams y, and bend the blank around and up to the edge of the former, as the blank moves on. The bent blank next strikes. the projeetioni of the die-block e which brings said block down upon the-,shoe-blank, and causes its punches or dies to sink the nail-holes in the blank, and whileuthe block is thus operating the rolls d are pressed up against the blank and prevent the metal from spreading under the action of the punches. At the same time in succession with the described bending mechanism, substantially as set forth.

the punches are operating the eallvbendew are pressed up by.the inclines, as before set forth, and finally the shoe is thrown from the wheel by the discharger u.

I claim, in combination with the series of movable formers or pattern-blocks, the swinging die-block c, when arranged to operate as set forth. I a

Also, in combination with the swinging die-block, the auxiliary presser-rolls a actuated by the levers which carry the rolls 12, substantially as described.

Also, in. combination with revolving formers and the bending rolls, the calk-b enders, operating substantially as set forth.

Also, in combination with the movable formers and bending mechanism, the dischargers q, operated substantially as described. 7

Also, the arrangement of the formers around the periphery of a wheel, grooved centrally of its periphery, as and for the purpose substantially as describedf Also, the sliding feed-carriage, with its spring-pawls, when arranged inconnection with the cutting and bending mechanism,.and whenopcrated by the cam on the main shaft, substantially as described.

Also, in combination with the bending mechanism, the griping-jaw q, for holding the bar while being cut, and the tooth r, for holding the blank at its centre to prevent it from sliding endwise as the bending rolls begin to act, substantially as set forth.

Also, the cutting-blade 0, when arranged to operate in combination with the feeding mechanism, movable former-block, and bending-rolls, and when operated by the cam on the main shaft, substantially as described.

Also, in a horse-shoe machine, the described arrangementof the feeding, cutting, griping, and bending mechanism, to be all operated directly fromthemain driving-shaft, substantially as described.

Also, the arrangement around the periphery of a wheel of a 'series of formers or pattern-blocks, operating A. J.'ROBERTS. Witnesses:

F. GOULD,

J. B. Caesar. 

